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1220133353 is a prime number
BaseRepresentation
bin100100010111001…
…1100000111101001
310011000220012022012
41020232130013221
54444323231403
6321023405305
742143651045
oct11056340751
93130805265
101220133353
1157680827a
122a0753835
13165a234ca
14b8091025
15721b5ed8
hex48b9c1e9

1220133353 has 2 divisors, whose sum is σ = 1220133354. Its totient is φ = 1220133352.

The previous prime is 1220133331. The next prime is 1220133379. The reversal of 1220133353 is 3533310221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1051834624 + 168298729 = 32432^2 + 12973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220133353 - 214 = 1220116969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1220133253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610066676 + 610066677.

It is an arithmetic number, because the mean of its divisors is an integer number (610066677).

Almost surely, 21220133353 is an apocalyptic number.

It is an amenable number.

1220133353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220133353 is an equidigital number, since it uses as much as digits as its factorization.

1220133353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1220133353 is about 34930.4072836261. The cubic root of 1220133353 is about 1068.5686608739.

Adding to 1220133353 its reverse (3533310221), we get a palindrome (4753443574).

It can be divided in two parts, 12201 and 33353, that added together give a palindrome (45554).

The spelling of 1220133353 in words is "one billion, two hundred twenty million, one hundred thirty-three thousand, three hundred fifty-three".